Standard pressurisation units
Fully automatic, PLC controlled units available with single or dual pumps. Floor-standing or wall-mounting cabinets. Suitable for most commercial heating and chilled water systems.
Pressurisation systems
Maintaining pressure in sealed systems
Pressurisation units maintain the correct operating pressure in sealed heating and chilled water systems. When the system pressure drops due to temperature fluctuations, minor leaks or system venting, the unit automatically tops the pressure up from the mains supply. We manufacture pressurisation units for commercial and industrial applications, from compact wall-mounted units to large fill spill systems.
Pressurisation systems
Sized to your system requirements
Our pressurisation units are fully automatic and PLC-controlled, designed to maintain the required system pressure without manual intervention. Dual pump configurations are available as standard, housed in floor-standing cabinets, wall-mountable enclosures or on a purpose-sized chassis to suit your plant room.
For larger sealed systems subject to extreme temperature and pressure changes, our fill spill units provide the capacity needed. Built with 304 stainless steel tanks for longevity, these can be configured to fit within plant room constraints.
Pressurisation applications
Where pressurisation units are used
Pressurisation units are specified for sealed heating and cooling systems where maintaining consistent pressure is critical to system performance and component protection.
Sealed central heating systems in commercial buildings. Chilled water circuits for air conditioning. Underfloor heating installations. Industrial cooling processes. Any sealed water system where pressure must be maintained automatically.
Pressurisation unit range
From compact units to large-scale systems
Fill spill units
Designed for larger sealed systems capable of extreme temperature and pressure changes. Our units remove the need for multiple large expansion vessels which have temperature limitations or will require considerable space to accommodate. Supplied with bespoke 304 stainless steel tanks for longevity, configurations can be made to fit any plant room constraints.
Expansion vessels
Expansion vessels absorb the increased volume as water heats and expands. Available for heating systems, chilled water circuits and hot water services. Cylindrical diaphragm design prevents water contact with the steel shell.
Pressurisation unit specifications
How it works
- Pressure sensors monitor system pressure continuously
- If pressure drops below the set point, the pump activates
- Water is drawn from the mains supply to top up the system
- Once target pressure is reached, the pump shuts off
- The expansion vessel absorbs volume changes as temperature fluctuates
Key functions
- Maintains system at designed operating pressure
- Compensates for pressure drop caused by temperature fluctuations, minor leaks or venting
- Protects pumps and boilers from running dry
- Includes backflow prevention to protect mains supply
Pressurisation unit quote